TarantulidEe in the British Museum. 287 



H. chiracanthus (Gervais), Journ. Inst. Soc. Phil. Paris, 



1842, p. 72 j Ins. Apt. iii. p. 4. 

 H. Batesii, Butler, Ann. & Mag. Nat. Hist. (4) xii. 



p. 120. 

 H. longicornis, id. t. c. p. 123. 



The four may be briefly diagnosed as follows : — 



a. Spines on femur of chela f , on tibia | ; tarsus 



externally granular cervinus, sp. n. 



b. Spines on femur of chela §■, on tibia £ ; tarsus 



externally smooth. 

 a 1 . Chelae in males short, the femur only a 

 little longer than the width of the cara- 

 pace ; second spine on lower edge of tibia 

 much shorter than the first and third, 

 distal spine on lower edge of tibia longer 

 and stronger than the one that precedes it. longicornis (Butl.). 

 b 1 . Chelae, at least in the adult males, exceed- 

 ingly long and slender, about twice the 

 width of the carapace ; distal spine on 

 lower edge of tibia not longer than the 

 one that precedes it. 

 a 2 . Second spine on the femur of the chela 

 subequal to the first and third ; chelte 



stouter, spine-armature stronger chiracanthus (Gervais). 



b 2 . Second spine on femur noticeably shorter 

 than first and third; chelae thinner, 

 spines shorter and weaker Batesii (Butl.). 



Heterophrynus chiracanthus (Gervais). 



Of this species we have three adult examples from Deme- 

 rara (types) and one which has no locality. The specimen 

 from New Granada which Butler referred to this form belongs, 

 I think, to his Batesii. Mons. Simon (loc. cit. p. 51) wrongly 

 referred this species to the palmatus group. 



Heterophrynus Batesii (Butl.). 



Very nearly allied to the preceding. We have dry examples 

 (types) from the Upper Amazons, one (also dry) from New 

 Granada, and three in spirit ticketed S. America. 



Heterophrynus longicornis (Butl.). 



Four (including type) , dry, from Para, and one, in spirit, 

 from Santarem. 



The example from Para that Mr. Butler identified as //. gorgo 

 of Wood was one of the specimens of H. chiracanthus which 

 had exchanged labels with one of the examples of longicornis. 



20* 



